From b278727bcf2c9c67e7437fdb8e2779bd8c1ccd7c Mon Sep 17 00:00:00 2001
From: "A. Unique TensorFlower" <gardener@tensorflow.org>
Date: Fri, 13 Feb 2026 17:16:36 -0800
Subject: [PATCH] Improve error message when creating a temporary file fails

Add the temporary file path and the specific system error when `mkstemp` fails.

PiperOrigin-RevId: 869948605
---
 tsl/platform/path.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tsl/platform/path.cc b/tsl/platform/path.cc
index e251972c7..65c1405a0 100644
--- a/tsl/platform/path.cc
+++ b/tsl/platform/path.cc
@@ -20,6 +20,8 @@ limitations under the License.
 #include <stdlib.h>
 #include <sys/stat.h>
 #include <sys/types.h>
+
+#include <cstring>
 #if defined(PLATFORM_WINDOWS)
 #include <windows.h>
 #else
@@ -338,7 +340,8 @@ string GetTempFilename(const string& extension) {
         fd = mkstemp(&tmp_filepath[0]);
       }
       if (fd < 0) {
-        LOG(FATAL) << "Failed to create temp file.";
+        LOG(FATAL) << "Failed to create temp file " << tmp_filepath  // Crash OK
+                   << ", error: " << strerror(errno);
       } else {
         if (close(fd) < 0) {
           LOG(ERROR) << "close() failed: " << strerror(errno);